Campbell Hausfeld Speedaire Rebuild Kit for VT4700, VT4800, and VT4900 pumps manufactured after March 2012 is a targeted repair set designed to restore performance by replacing key wear parts in the VT pump series. The kit includes a cylinder gasket XA011900AV, a valve plate VT491100AV, and two ring kits VT911200AV corresponding to the VT4800 and VT4900 models. This after-03/2012 rebuild kit is intended specifically for the VT4700/VT4800/VT4900 family and addresses components in the cylinder head and valve assemblies to maintain compression and airflow.
